Soldering What is the optimum soldering conditions and solder fillet? The best solder fillet for all SMT applications is one which makes a reliable connection and which best withstands the environmental exposures of the products with minimum degradation. This fillet is difficult to describe quantitatively for all parts. The optimum fillet ranges in height from […]
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Board Design and Component Pre-Assembly Preparation The leads of leaded components shall be bent and often cut to the right length before they are mounted / soldered to the substrate. Lead cutting, bending and mounting are operations that may be hazardous if they are not performed properly. Components mounted to soldering terminals must be provided
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Oxidization Fast oxidisation is a common issue related to high temperatures and presence of oxygen during the convection reflow or wave soldering processes. The oxidisation may induce some degradation of metal surface and its environmental robustness, thus impacting the components and the electronic hardware lifetime. The level of oxidisation is depending on more factors, the
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IR reflow soldering IR infrared “convection” reflow is commonly used in commercial large volume SMD components mounting process. The main differences in reflow soldering processes and oven types lie in heat transfer methods – radiation, conduction, convection and condensation. In fact, all heat transfers are used in modern reflow ovens. The heat is applied from
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The following is a list of most common soldering and mounting standards used and referred by passive component manufacturers in their mounting guide specifications: EIA/IPC/JEDEC J-STD-002E – Solderability Tests for Component Leads, Terminations, Lugs, Terminals and Wires JESD22-B102E – Solderability IPC/JEDEC J-STD-020E – Moisture/Reflow Sensitivity Classification for Non-Hermetic Solid State Surface Mount Devices IPC/JEDEC J-STD-033C–
The aim of this course is to collect and summarize mounting recommendations of publicly available information from capacitor and resistor commercial component manufacturers. The survey aim is to collect the manufacturer’s recommendations and good tips for capacitors and resistor mounting BEYOND the industry standards. The survey doesn’t aim to provide a complete mounting procedure guidelines
